Saturnalian

from The Collaborative International Dictionary of English v.0.48

Saturnalian \Sat`ur*na"li*an\, a.
   1. Of or pertaining to the Saturnalia.
      [1913 Webster]

   2. Of unrestrained and intemperate jollity; riotously merry;
      dissolute. "Saturnalian amusement." --Burke.
      [1913 Webster]